<?php

if (!defined('INCLUDE_CHECK'))
    die('You are not allowed to execute this file directly');

function checkEmail($str) {
    return preg_match("/^[\.A-z0-9_\-\+]+[@][A-z0-9_\-]+([.][A-z0-9_\-]+)+[A-z]{1,4}$/", $str);
}

function send_mail($from, $to, $subject, $body) {
    $headers = '';
    $headers .= "From: $from\n";
    $headers .= "Reply-to: $from\n";
    $headers .= "Return-Path: $from\n";
    $headers .= "Message-ID: <" . md5(uniqid(time())) . "@" . $_SERVER['SERVER_NAME'] . ">\n";
    $headers .= "MIME-Version: 1.0\n";
    $headers .= "Date: " . date('r', time()) . "\n";

    mail($to, $subject, $body, $headers);
}

?>